<!DOCTYPE html>
<html lang="en">

<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Document</title>
  <style>
    .v-enter,
    .v-leave-to {
      opacity: 0;
      transform: translateX(150px);
    }
    .v-enter-active,
    .v-leave-active {
      transition: all 0.5s ease;
    }
  </style>
</head>

<body>
  <div id="app">
    <a href="" @click.prevent="comName='login'">登录</a>
    <a href="" @click.prevent="comName='register'">注册</a>

    <!-- 通过 mode 模式，设置组件切换时候的模式 -->
    <transition mode="out-in">
      <component :is="comName"></component>
    </transition>

  </div>

  <script src="libs/vue.js"></script>
  <script>
    Vue.component('login', {
      template: '<h3>登录组件</h3>'
    })
    Vue.component('register', {
      template: '<h3>注册组件</h3>'
    })

    var vm = new Vue({
      el: '#app',
      data: {
        comName: 'login'
      }
    })
  </script>
</body>

</html>